No exploitation reportedFix available

CVE-2022-38371

Q: Is CVE-2022-38371 actively exploited?

Active exploitation of CVE-2022-38371 has not been confirmed. Its EPSS score was 1.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-38371?

CVE-2022-38371 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-10-11
WeaknessCWE-400 · CWE-401

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.7), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.21), APOGEE PXC Modular (BACnet) (All versions < V3.5.7), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.21), Desigo PXC00-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC00-U (All versions >= V2.3 < V6.30.37), Desigo PXC001-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC100-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC12-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC128-U (All versions >= V2.3 < V6.30.37), Desigo PXC200-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC50-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC64-U (All versions >= V2.3 < V6.30.37), Desigo PXM20-E (All versions >= V2.3 < V6.30.37), Nucleus NET for Nucleus PLUS V1 (All versions < V5.2a), Nucleus NET for Nucleus PLUS V2 (All versions < V5.4), Nucleus ReadyStart V3 V2012 (All versions < V2012.08.1), Nucleus ReadyStart V3 V2017 (All versions < V2017.02.4), Nucleus Source Code (All versions including affected FTP server), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The FTP server does not properly release memory resources that were reserved for incomplete connection attempts by FTP clients. This could allow a remote attacker to generate a denial of service condition on devices that incorporate a vulnerable version of the FTP server.

Timeline

dates in UTC

2022-10-1111:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-38371?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-38371?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Siemens apogee modular building controller firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Siemens apogee modular equiment controller firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Siemens apogee pxc compact firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

18 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-286-07 CISA5 known affected
Siemens Nucleus RTOS FTP Server
Nucleus NET for Nucleus PLUS V1 · Nucleus NET for Nucleus PLUS V2 · Nucleus ReadyStart V3 V2012 · +2 more
ICSA-22-286-12 CISA23 known affected
Siemens APOGEE, TALON and Desigo PXC/PXM Products
APOGEE MBC (PPC) (BACnet) · APOGEE MBC (PPC) (P2 Ethernet) · APOGEE MEC (PPC) (BACnet) · +20 more

Full record on NVD

Fix

Vendor fix CISA ICSA-22-286-07 · 1 productContact customer support to receive patch and update information
Vendor fix CISA ICSA-22-286-07 · 1 productUpdate to V2012.08.1 and apply the patch "v2022.11"
Vendor fix CISA ICSA-22-286-07 · 1 productUpdate to V2017.02.4 and apply the patch "2017.02.4_patch_CVE-2022-38371"
Vendor fix CISA ICSA-22-286-07 · 1 productUpdate to V5.2a as available in Nucleus PLUS V1.15 and apply the patch "v2022.11"
Vendor fix CISA ICSA-22-286-07 · 1 productUpdate to V5.4 as available in Nucleus PLUS V2.1f and apply the patch "v2022.11"
Vendor fix CISA ICSA-22-286-12 · 4 productsUpdate to V3.5.7 or later version

Advisories and patches

cert-portal.siemens.comPatch · Vendor Advisory
cert-portal.siemens.comPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-08-07
OpenCVESSVC decisionnone—
CNACVSS 4.08.7read 2026-10-23
CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-400read 2026-10-23
NVDweakness (CWE)CWE-401read 2026-10-23
FIRST EPSSEPSS score1.6 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: 2022-10-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-38371?

Is CVE-2022-38371 actively exploited?

Active exploitation of CVE-2022-38371 has not been confirmed. Its EPSS score was 1.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-38371?

CVE-2022-38371 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Running APOGEE MBC (PPC) (BACnet) (All? Hear about its next vulnerability

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